2014 DS5 do replacement components need to be coded in?

[Mozi]

I'm hoping this question hasn't been asked else where on the forum (I've had a look, but if it has been asked please direct me there)
I have a 2014 Citroen DS5 HDI that started running on 3 cylinders, an OBD tool shows code P0265 which indicates either an issue with the cylinder 2 fuel inject or wiring.
The wiring appears to be in good condition so my initial suspicion is the injector.
However before I go ordering parts or using an independent mechanic do the engine components for this car need to be coded in to work?
Or do they need to be coded in by a Citroen approved service agent?
In case you need it here's the VIN: VF7**************[VIN obfuscated, can be read by forum staff] in case it's needed.
Thanks in advance for any help or support

[GiveMeABreak]

Injectors usually need to have their codes or classifications entered into the engine ECU using a professional level diagnostic tool.

You have a Siemens injection system, and the classification is 6 characters. Don't forget For each diesel injector, always replace the seals, the bolt, the fuel injector bracket, the thrust button and the high pressure fuel pipe.

[Mozi]

Thanks Marc